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Boavus
''Boavus'' is an extinct genus of boa known primarily from Eocene-aged strata of North America. At least three species (''B. occidentalis, B. idelmani'', and possibly ''B. agilis'') are known from the Middle Eocene Green River lagerstätte in Wyoming, two species from Eocene strata of Uinta County (''B. occidentalis'' again, ''B. brevis''), and at least one species is known from the middle to late Eocene-aged Sepse Formation of California (''B. affinis''). ==Post-Eocene specimens==
Three vertebrae very similar in form, if not identical to those of ''B. occidentalis'' were found in early Oligocene-aged strata of South Dakota.〔 Remains of what may be ''B. affinis'' are found in Late Miocene (Early Barstovian-aged) strata of Trinity River in Texas.〔
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